liquid crystal polymers
The Frozen State in the Liquid Phase of Side-Chain Liquid-Crystal Polymers
... the liquid and solid states remains obscure; our experiments show that so far unidentified gigantic solid correlations exist far away from glass and phase transitions, in the ‘‘molten’’ state of side-chain ...
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Richness of Side-Chain Liquid-Crystal Polymers: From Isotropic Phase towards the Identification of Neglected Solid-Like Properties in Liquids
... reminiscent liquid crystal properties, nor from the polymer properties, or nor from glass transition pre-transitional ...In liquid-crystal polymers, the earlier works are due to ...
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Origin of shear-induced phase transitions in melts of liquid-crystal polymers
... side-chain liquid crystal polymers exhibit typically shear-induced phases inside the isotropic 共nonmesomorphic兲 liquid ...a liquid-crystal polymer to the equilibrium ...
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Identification of nonmonotonic behaviors and stick-slip transition in liquid crystal polymers
... 64.70.Md Polymers are non-Newtonian fluids 关1兴 whereas liquid crystals do not behave as simple fluids close to phase transi- tions ...sidechain liquid crystal polymers 共SCLCPs兲, the ...
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Shear Flow Induced Transition from Liquid-Crystalline to Polymer Behavior in Side-Chain Liquid Crystal Polymers
... “ordinary” polymers has been studied for more than two decades both experi- mentally and theoretically ...of liquid crystal polymer behavior under shear flow has only recently begun ...for ...
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Defects in liquid crystal polymers : their origins and behavior in magnetic and flow fields
... Figure 1.1: This schematic emphasizes the interconnections between structure, properties, processing and performance. The defect placed at the center of the pyramid can hav[r] ...
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Vortex coronagraphy from self-engineered liquid crystal spin-orbit masks
... The achromatic features of the vectorial option versus its scalar counterpart [ 10 , 11 ] have eventually led to equip state of the art large instruments such as Keck, Subaru, Hale, Large Binocular Telescope, and Very ...
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Hidden solidlike properties in the isotropic phase of the 8CB liquid crystal
... For a better understanding of the origin of the elastic response, the experiments were also carried out for T < T N I in the nematic and smectic phases. Figure 4(a) shows the values of the shear elasticity measured at ...
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Theoretical and experimental study of tunable liquid crystal lenses : wavefront optimization
... tunable liquid crystal lens designs Tunable lenses have always been of great interest because they have numerous applications not only in scientific domain, but in everyday use devices as well (phone ...
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Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush
... cible liquid (both Fe-rich CBL and Fe-rich immiscible droplets) and Si-rich conjugates examined here 41 is small ...Fe-rich liquid-coating plagioclase grains ...Fe-rich liquid reaches a critical ...
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HRTEM, TSC and broadband dielectric spectroscopy of a discotic liquid crystal
... Conclusion This combined HRTEM, DDS, TSC and standard DSC study gives us more information about behavior law and molecular mobility involved in this highly ordered columnar liquid crystal. The complete ...
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HRTEM, TSC and broadband dielectric spectroscopy of a discotic liquid crystal
... Conclusion This combined HRTEM, DDS, TSC and standard DSC study gives us more information about behavior law and molecular mobility involved in this highly ordered columnar liquid crystal. The complete ...
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Lyotropic liquid crystals and linear supramolecular polymers of end-functionalized oligosaccharides
... lyotropic liquid crystal systems have been reported for various polysaccharides including cellulose, chitin, amylose or their ...supramolecular polymers could form lyotropic liquid crystals ...
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Gold nanoparticle self-assembly moderated by a cholesteric liquid crystal
... uid crystal areas attract nanoparticles due to the reduc- tion of elastic energy accompanying the replacement of a distorted volume by a ...even polymers can be attracted by distorted areas ...
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Surface modification of as-synthesized lamellar mesostructured silica obtained by liquid crystal templating
... The as-synthesized substrates have a different lamellar periodi- city, which is visible in their X-ray diffraction pattern (fine curve on Fig. 1 and 2): the lamellar silica obtained in acid[r] ...
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Liquid crystal based tunable PIN-photodiodes for detection around 1.55-µm
... Tunable photonic devices have been a subject of strong interest for the two last decades, with works mainly focused on tunable optical sources such as VCSEL [1] . Studies have also been conducted on tunable photodiodes ...
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Nanocomposites of a nematic liquid crystal doped with magic-sized CdSe quantum dots
... concentrations (1–5 wt%) into the nematic phase of 5-n-heptyl-2-(4-n-octyloxyphenyl)-pyrimidine (LC1). Only QD3 showed the formation of birefringent stripes surrounded by areas of homeotropic alignment between plain ...
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Oriented Gold Nanorods and Gold Nanorod Chains within Smectic Liquid Crystal Topological Defects
... 26 MATERIALS AND METHODS In order to study a directed assembly of GNRs, pure smectic liquid crystal (LC) 8CB (4-n-octyl- 4´-cyano-biphenyl) and composites made of GNRs embedded in 8CB have been ...
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Multiple-Star System Adaptive Vortex Coronagraphy Using a Liquid Crystal Light Valve
... The LCLV consists of a L ¼ 13-μm-thick nematic LC layer (MLC6608, from Merck, characterized by a negative relative dielectric permittivity ϵ a ≃ −4.2 at 1 kHz frequency and 20 °C temperature) sandwiched between a ...
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Direct Liquid to Crystal Transition in a Quasi-Two-Dimensional Colloidal Membrane
... Since none of the single-phase models fit the structure factor for c D = 43.7 and 45.4 [mg/mL], we tried to describe it as co- existence between the hexagonal phase found at higher concentrations and the hard-disk liq- ...
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